macOS Tahoe "Operation not supported" error when Dragging & Dropping photos into Pinta app

[LimE-CA]

Description
Operation not supported error encountered when attempting to drag and drop JPG files into Pinta app window. Tried granting Pinta "Full Disk Access" in macOS Privacy & Security settings, but it doesn't solve the issue. Opening image files via right-click/context menu in Finder i.e. "Open with" -> "Pinta" works fine. Opening image files from within Pinta's menu interface "File" -> "Open" works fine.

Details of error noted:

GLib.GException: Operation not supported
   at Gio.FileHelper.QueryInfo(String attributes, FileQueryInfoFlags flags, Cancellable cancellable)
   at Pinta.Core.GioExtensions.GetDisplayName(File file)
   at Pinta.Core.WorkspaceManager.OpenFile(File file, Window parent)

To Reproduce

1. Open Pinta, move app window aside, ensuring part of it is still visible.
2. Open macOS Finder, browse to folder with photos.
3. Select 1 or more JPG image files, then drag & drop over to the visible part of Pinta app window.
4. Error message should appear.

Additional Info

Version
MacBook Air running macOS v26.4.1, with Pinta v3.1.2.

[cameronwhite]

Confirmed on macOS (a workaround is dropping on the dock icon, which happens to go through a very different code path)
I think this is most likely an issue upstream in GTK since the GFile provided to us seems to have an invalid uri (should be unencoded like file://

[LimE-CA]

Thanks Cameron! It indeed does work with drag & drop onto the Pinta dock icon, thank you!! :D I really REALLY appreciate the Pinta app for macOS, coming from a long-time Windows "Paint.NET" user, this is the next best thing to a light-weight and powerful image/photo editor for fast & direct actions! :))) Regards, *Edwin Lim, P '27**Technology Administrator* *Columbus Academy* 4300 Cherry Bottom Road, Gahanna, OH 43230 (614) 475-2311 *ColumbusAcademy.org <https://www.columbusacademy.org/>* *On-campus and virtual tours are available. To schedule a visit, call (614) 509-2220.*

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On Fri, Apr 17, 2026 at 10:26 PM Cameron White ***@***.***> wrote: *cameronwhite* left a comment (PintaProject/Pinta#2124) <#2124 (comment)> Confirmed on macOS (a workaround is dropping on the dock icon, which happens to go through a very different code path) I think this is most likely an issue upstream in GTK since the GFile provided to us seems to have an invalid uri (should be unencoded like file:// — Reply to this email directly, view it on GitHub <#2124?email_source=notifications&email_token=BAGKBK6YJAB3HRBJDS4KK7L4WLRTVA5CNFSNUABFM5UWIORPF5TWS5BNNB2WEL2JONZXKZKDN5WW2ZLOOQXTIMRXGI2DINRSGQ22M4TFMFZW63VGMF2XI2DPOKSWK5TFNZ2KYZTPN52GK4S7MNWGSY3L#issuecomment-4272446245>, or unsubscribe <https://github.com/notifications/unsubscribe-auth/BAGKBK5OBDSNZ6IQRP2M64D4WLRTVAVCNFSM6AAAAACX5DQRMCVHI2DSMVQWIX3LMV43OSLTON2WKQ3PNVWWK3TUHM2DENZSGQ2DMMRUGU> . You are receiving this because you authored the thread.Message ID: ***@***.***>